[pre-commit.ci] auto fixes from pre-commit.com hooks

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Author: pre-commit-ci[bot]

src/amrex/Array4.py

@@ -6,6 +6,7 @@
 License: BSD-3-Clause-LBNL
 """
 
+
 def array4_to_numpy(self, copy=False, order="F"):
     """
     Provide a Numpy view into an Array4.